ICD-10-CM
Certain infectious and parasitic diseases
Chapter 1, A00-B99. CDC FY2027 file dated June 16, 2026.
License: a US government work, in the public domain (Public Domain Mark 1.0).
Run it in Rivvi
Check every code on your export
Upload a claims or problem-list export. Rivvi flags codes that are not billable, replaced, or unspecified when a specific code exists.
Check my exportFree to start. Opens Rivvi, the AI workspace for healthcare teams.
Categories
167 categories in this chapter. Open one, or page through every code below.
- A00Cholera
- A01Typhoid and paratyphoid fevers
- A02Other salmonella infections
- A03Shigellosis
- A04Other bacterial intestinal infections
- A05Other bacterial foodborne intoxications, NEC
- A06Amebiasis
- A07Other protozoal intestinal diseases
- A08Viral and other specified intestinal infections
- A09Infectious gastroenteritis and colitis, unspecified
- A15Respiratory tuberculosis
- A17Tuberculosis of nervous system
- A18Tuberculosis of other organs
- A19Miliary tuberculosis
- A20Plague
- A21Tularemia
- A22Anthrax
- A23Brucellosis
- A24Glanders and melioidosis
- A25Rat-bite fevers
- A26Erysipeloid
- A27Leptospirosis
- A28Other zoonotic bacterial diseases, not elsewhere classified
- A30Leprosy [Hansen's disease]
- A31Infection due to other mycobacteria
- A32Listeriosis
- A33Tetanus neonatorum
- A34Obstetrical tetanus
- A35Other tetanus
- A36Diphtheria
- A37Whooping cough
- A38Scarlet fever
- A39Meningococcal infection
- A40Streptococcal sepsis
- A41Other sepsis
- A42Actinomycosis
131 more categories are in this chapter. Type a code or a term to open one.
Codes
A header groups codes and is not billed. A billable code is one you can report.
201 to 240 of 1,309
- A27LeptospirosisHeader
- A27.0Leptospirosis icterohemorrhagicaBillable
- A27.8Other forms of leptospirosisHeader
- A27.81Aseptic meningitis in leptospirosisBillable
- A27.89Other forms of leptospirosisBillable
- A27.9Leptospirosis, unspecifiedBillable
- A28Other zoonotic bacterial diseases, not elsewhere classifiedHeader
- A28.0PasteurellosisBillable
- A28.1Cat-scratch diseaseBillable
- A28.2Extraintestinal yersiniosisBillable
- A28.8Other zoonotic bacterial diseases, not elsewhere classifiedBillable
- A28.9Zoonotic bacterial disease, unspecifiedBillable
- A30Leprosy [Hansen's disease]Header
- A30.0Indeterminate leprosyBillable
- A30.1Tuberculoid leprosyBillable
- A30.2Borderline tuberculoid leprosyBillable
- A30.3Borderline leprosyBillable
- A30.4Borderline lepromatous leprosyBillable
- A30.5Lepromatous leprosyBillable
- A30.8Other forms of leprosyBillable
- A30.9Leprosy, unspecifiedBillable
- A31Infection due to other mycobacteriaHeader
- A31.0Pulmonary mycobacterial infectionBillable
- A31.1Cutaneous mycobacterial infectionBillable
- A31.2Dissem mycobacterium avium-intracellulare complex (DMAC)Billable
- A31.8Other mycobacterial infectionsBillable
- A31.9Mycobacterial infection, unspecifiedBillable
- A32ListeriosisHeader
- A32.0Cutaneous listeriosisBillable
- A32.1Listerial meningitis and meningoencephalitisHeader
- A32.11Listerial meningitisBillable
- A32.12Listerial meningoencephalitisBillable
- A32.7Listerial sepsisBillable
- A32.8Other forms of listeriosisHeader
- A32.81Oculoglandular listeriosisBillable
- A32.82Listerial endocarditisBillable
- A32.89Other forms of listeriosisBillable
- A32.9Listeriosis, unspecifiedBillable
- A33Tetanus neonatorumBillable
- A34Obstetrical tetanusBillable